whiteman



(No Model.)

0. L. WHITEMAN.

VALVE.

No. 351,142. Patented Oct. 19, 1886.

Nan N R INVENTOR: O of BY Mm WITNESSES ATTORNEYS.

N. PETERS. PbvtoLiihogmpher, Wnh

UNITED STATES PATENT Erica.

OWEN L. VVHITEMAN, OF HAYDENVILLE, MASSACHUSETTS, ASSIGNOR TO HIMSELFAND CHESTER B. HOSFORD, OF SAME PLACE.

VALVE.

SPECIFICATION forming part of Letters Patent No. 351,142, dated October19, 1886.

(No model.)

To all whom it may concern:

Be it known that I, OWEN L. WHITEMAN, of Haydenville, in the county ofHampshire and State of Massachusetts, have invented a new and ImprovedValve, of which the following is a full, clear, and exact description.

My invention relates to certain improve ments in valves of thatdescription known as "straightway or gate valves.

It consists in the manner in which the gates are suspended on thecarrier, whereby a rot-at ing or rocking adjustment is obtained, and inwhich each gate has a motion opposite to the other, yet in the samedirection-the one a horizontal and the other a perpendicular rockingn1otionas will be hereinafter fully described and claimed.

Reference is to be had to the accompanying drawings, forming a part ofthis specification, in which similar letters of reference indicatecorresponding parts in all the figures.

Figure 1 is a side elevation of my valve, partly in section; Fig. 2, abottom view, partly in section, illustrating the manner in which thegates are suspended upon the carrier. Figs. 3 and 4 are detail views ofthe under sides or backs of the gates; and Fig. 5 is a detail view ofthe carrier, showing the bearings upon which the gates are hung.

The letter A indicates the valve case, and B the stem; S, a hand-wheel,by which the stem is operated, and T the usual gland or stuffingboxthrough which the stem passes.

B designates the carrier, which is interiorly threaded to the stem R, asshown, all as in the usual construction. This carrier Bis provided atits extreme lower end, upon the one side, with lateral projecting arms BB, whose outer surfaces are rounded off on a circle, being U- shaped incross-section. Upon the opposite side of carrier B a recess or slot, 0,is formed slightly above the line of the upper or flat surfaces of thelateral projecting arms B B, as shown in Fig. 5, and penetrating toabout one-half its diameter, forming thereby a circular bearing, G,which extends downwardly slightly below the line of the lateralprojecting arms B B.

D D indicate gates having suitable closing disk-faces (Z d, and E E theslightly inclined 5o seats, against which the gates close.

F F indicate the backs of the gates, which confront one another when inposition within the valve.

Upon the back F of gate D is cast a square projection, a, formed with asemicircular groove, a, to receive the body of the carrier, and with across semicircular groove, a, to fit upon the arms B of the carrier, asshown in Fig. 3. The back F of the gate D is provided with asquare'projeciion, f, centrally in the face of which is a square recess,9, of semi cylindrical form in cross-section, to receive the circularbearing G upon the carrier B. Semicircular grooves f are formed in theupper and lower sides of this square projectionf, to admit the passageof the screw-stem R. (See Fig. 4.) Thus the carrier B, being recessed orslotted on the one side, forms, as it were, a shelf, upon which, bymeans of the upper or lateral side of the recess 9, the disk D issuspended, while upon the opposite side the lat eral projecting arms Bform the support and bearing for the disk D. The bearings of both disksbeing'circular, admit of an easy rotat- 7 5 ing or rocking adjustment ofthe gates, and as the adjustment of the gates on the carrier is central,the wedging force is applied direct, which keeps them secure under highpressure.

In construction my valve is simple and so cheap, yet thoroughlyeffective.

In the operation of my straight-way valve it follows that each gate hasa motion on its carriage opposite to that of the other, while both movebodily in the same direction, the gate D having a rocking motion in avertical plane, while the gate D has a rocking motion in a horizontalplane, which admits of the gates adapting themselves to the alignment ofthe valveseats. A perfect and easy descent is go thus secured of thegates to their seats, and an effective seat procured.

Having thus fully described my invention, I claim as new and desire tosecure by Letters Patent 1. The combination, with a carrier, B,constructed with lateral arms B B, and recess 0, forming a circularbearing, G, of gates D D, provided upon their rear sides with progularrecess, 0, penetrating the shell of the jections formed. with recessesadapted to recarrier upon the other side, above said pro- [0 ceive thearms B, and bearing; G, substantially jeeling arms, substantially asshown and deas described. v scribed, and for the purpose herein setforth.

5 2.'The carrier B, interiorly threaded to, OWEN L. VVHITEMAN.

receive the stem of a valve, and provided I Witnesses: with lateralgrojecting arms B B' upon one WILLIS F. ANDERSON, side at the lower endthereof, and a reotan- N. FAY SMITH.

